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		  <h2>问题数最多的功能统计</h2>
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		<canvas id="bar" class="chart chart-bar" chart-click="problemNumClick" chart-colors="coloursProblemNum" chart-data="dataProblemNum" chart-labels="labelsProblemNum"> chart-series="seriesProblemNum"</canvas>  
		<span style="display:block;text-align:center;">
	        <span style="color:#FB4443;">问题数最多的功能统计</span>
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